Many New Testament biblical students today of both Messianic Jewish and Christian backgrounds, are finding out that Paul of Tarsus simply doesn't fit with the remainder of New Testament theology. There is an article I've recently read, from the Judaism vs. Christianity dot com website that deals explicitly with this topic...
Well, now I cannot seem to access it, but here is the link:
http://www.judaismvschristianity.com/paulthe.htm
The article brings to attention the words of Paul himself in 2 Timothy 1:15 where he declares that "all in Asia have turned away from me"... in Revelation, Jesus congratulates those in Ephesus for rejecting "those who call themselves apostles but are not and have found them to be liars"... (Revelation 2:2,3)